[Lifetime Warranty] Window Air Conditioner Cover Indoor with Velcro Sides - Inside AC Cover for Winter - Polyester Fiber Fill Layers Insulation - 17" x 13" x 3.5" - Black
21" x 15" x 3.5" Black Window Air Conditioner Cover Indoor
Key Features
- Interior cover designed to block drafts and prevent heat loss during off-seasons.
- Constructed from durable polyester fabric for long-term use.
- Features an elastic border or drawstring for a secure, sealed fit.
- Helps keep dust, moisture, and debris from entering the room through the unit.
- Color: Black
- Dimensions (L x H x D): 21 in x 15 in x 3.5 in
Replaces / Cross-Reference Part Numbers
- This is a universal cover, not a direct replacement for a specific manufacturer part number.
- Intended for any brand of window air conditioner matching the specified dimensions.
Compatibility & Fitment
- Fits most standard window air conditioner units with face dimensions from 19"-21" (Length) x 13"-15" (Height).
- Compatible with many 10,000 to 12,000 BTU window units.
- Verify your air conditioner's indoor unit dimensions prior to purchase to ensure proper fit.
When to Replace
- Replace if the current cover is torn, punctured, or frayed.
- If the material has degraded and no longer provides an effective seal against drafts.
- When the elastic or drawstring mechanism is stretched out or broken, preventing a secure fit.
Installation Tips
- Ensure the air conditioner is powered off before covering the unit.
- Wipe down the face of the AC unit to remove any dust or debris.
- Position the cover over the front of the indoor unit.
- Pull the edges to ensure it is fully seated around the unit's frame.
- Tighten the integrated securing mechanism to create a firm seal against the wall or window frame.
Product Information
Product Information
Shipping & Returns
Shipping & Returns








[Lifetime Warranty] Window Air Conditioner Cover Indoor with Velcro Sides - Inside AC Cover for Winter - Polyester Fiber Fill Layers Insulation - 17" x 13" x 3.5" - Black
[Lifetime Warranty] Window Air Conditioner Cover Indoor with Velcro Sides - Inside AC Cover for Winter - Polyester Fiber Fill Layers Insulation - 17" x 13" x 3.5" - Black
21" x 15" x 3.5" Black Window Air Conditioner Cover Indoor
Key Features
- Interior cover designed to block drafts and prevent heat loss during off-seasons.
- Constructed from durable polyester fabric for long-term use.
- Features an elastic border or drawstring for a secure, sealed fit.
- Helps keep dust, moisture, and debris from entering the room through the unit.
- Color: Black
- Dimensions (L x H x D): 21 in x 15 in x 3.5 in
Replaces / Cross-Reference Part Numbers
- This is a universal cover, not a direct replacement for a specific manufacturer part number.
- Intended for any brand of window air conditioner matching the specified dimensions.
Compatibility & Fitment
- Fits most standard window air conditioner units with face dimensions from 19"-21" (Length) x 13"-15" (Height).
- Compatible with many 10,000 to 12,000 BTU window units.
- Verify your air conditioner's indoor unit dimensions prior to purchase to ensure proper fit.
When to Replace
- Replace if the current cover is torn, punctured, or frayed.
- If the material has degraded and no longer provides an effective seal against drafts.
- When the elastic or drawstring mechanism is stretched out or broken, preventing a secure fit.
Installation Tips
- Ensure the air conditioner is powered off before covering the unit.
- Wipe down the face of the AC unit to remove any dust or debris.
- Position the cover over the front of the indoor unit.
- Pull the edges to ensure it is fully seated around the unit's frame.
- Tighten the integrated securing mechanism to create a firm seal against the wall or window frame.
Original: $40.93
-65%$40.93
$14.33Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
21" x 15" x 3.5" Black Window Air Conditioner Cover Indoor
Key Features
- Interior cover designed to block drafts and prevent heat loss during off-seasons.
- Constructed from durable polyester fabric for long-term use.
- Features an elastic border or drawstring for a secure, sealed fit.
- Helps keep dust, moisture, and debris from entering the room through the unit.
- Color: Black
- Dimensions (L x H x D): 21 in x 15 in x 3.5 in
Replaces / Cross-Reference Part Numbers
- This is a universal cover, not a direct replacement for a specific manufacturer part number.
- Intended for any brand of window air conditioner matching the specified dimensions.
Compatibility & Fitment
- Fits most standard window air conditioner units with face dimensions from 19"-21" (Length) x 13"-15" (Height).
- Compatible with many 10,000 to 12,000 BTU window units.
- Verify your air conditioner's indoor unit dimensions prior to purchase to ensure proper fit.
When to Replace
- Replace if the current cover is torn, punctured, or frayed.
- If the material has degraded and no longer provides an effective seal against drafts.
- When the elastic or drawstring mechanism is stretched out or broken, preventing a secure fit.
Installation Tips
- Ensure the air conditioner is powered off before covering the unit.
- Wipe down the face of the AC unit to remove any dust or debris.
- Position the cover over the front of the indoor unit.
- Pull the edges to ensure it is fully seated around the unit's frame.
- Tighten the integrated securing mechanism to create a firm seal against the wall or window frame.
























